In practical applications of industrial plants, negative pressure fans are centrally installed on one side of the plant, with the air inlet on the other side of the plant. Air flows through the air inlet to the negative pressure fan to form convective blowing.

During this process, the doors and windows near the negative pressure fan remain closed, forcing air to flow into the workshop through the compensating doors and windows on the intake side. The air flows into the workshop in an orderly manner through the air inlet, passes through the workshop, and is discharged from the workshop by a negative pressure fan. Thorough and efficient ventilation, with a ventilation rate of up to 99%. Through specific engineering design and the design of ventilation rates and wind speeds as needed, any high heat, harmful gases, dust or smoke can be quickly discharged from the workshop, and any ventilation problems can be completely solved in one go. The ventilation effect can be achieved within a few seconds of turning on the fan.

In addition, it is worth noting in the application of negative pressure fans to consider the specific situation of the room:

The cooling (heating) load of the negative pressure fan should be suitable for the space size of the room being used. For a typical household, the required cooling load per unit area is 140W-170W per square meter, and the required heating load per unit area is 200W-230W per square meter. The cooling (heating) capacity represented by one air cooler is 735W. The number of negative pressure fans can be selected according to this standard.

2. The type of negative pressure fan should also be suitable for the room space. For example, window type negative pressure fans are more suitable for small rooms, split wall mounted negative pressure fans are suitable for rooms with an area of less than 15 square meters, cabinet and ceiling type negative pressure fans are suitable for larger rooms, and mobile negative pressure fans are suitable for local cooling.